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1 Communicatienetwerken Oefeningenreeks 2 (deel 1) Hoofdstuk : Netwerk Laag Woensdag 25 oktober 2006.

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Presentation on theme: "1 Communicatienetwerken Oefeningenreeks 2 (deel 1) Hoofdstuk : Netwerk Laag Woensdag 25 oktober 2006."— Presentation transcript:

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2 1 Communicatienetwerken Oefeningenreeks 2 (deel 1) Hoofdstuk : Netwerk Laag Woensdag 25 oktober 2006

3 2 Is this a class A,B or C address ? Is this a possible host adres? subnetmask : FF.FE subnetmask : FF.E subnetmask : FF.0F How many hosts are there in this subnetwork subnetmask : FF.FF.FF.E is a host in a network with 62 hosts What is the subnetworkaddress and the subnetmask ? class B class A class C Yes No (>255 !) No Yes No (wrong mask) 30 hosts subnet: mask : FF.FF.FF.C0 VRAAG 1

4 3 Subnetwork router A Subnetwork Subnetwork router B Subnetwork subnet masks: FF:FF:FF:00 router towards INTERNET VRAAG 2 - Routing table A ?

5 4 Subnetwork router A LAN 4 Subnetwork LAN 1 Subnetwork router B LAN 3 Subnetwork subnet masks: FF:FF:FF:00 LAN 2 router towards INTERNET VRAAG 2 : oplossing Always: - “default” entry - “local” entry DestinationSubnet MaskGatewayInterface FF.FF.FF LAN FF.FF.FF LAN FF.FF.FF LAN FF.FF.FF LAN LAN FF Lo Direct connected Networks, not in default

6 5 VRAAG rtr-urb tacitus hera URBIS ARC Klasse B Atlantis INTEC2 - Redistribute IP addresses using only.184 and.122 (most PC’s in Atlantis) - Routing table of rtr-urb (before and after redistribution)

7 6 Split subnetwork.122 (because more.184 users)

8 7 VRAAG 3 : Antwoord rtr-urb tacitus hera URBIS ARC Atlantis INTEC FF FF.FC FF.FC / / / /24 Free subnets : / / / / /30 subnet: is Network Address is Broadcast Address Only and can be used

9 8 VRAAG 3 : Antwoord Routing table rtr-urb original network DestinationMaskGatewayInterface.138.0/24 or FF.FF.FF /24 or FF.FF.FF /24 or FF.FF.FF /24 or FF.FF.FF /24 or FF.FF.FF default /8 or FF lo Routing table rtr-urb new network DestinationMaskGatewayInterface.138.0/24 or FF.FF.FF /30 or FF.FF.FF.FC /30 or FF.FF.FF.FC /25 or FF.FF.FF /24 or FF.FF.FF default /8 or FF lo

10 9 VRAAG 4 ABE DC Internet Subnetmask: FF.FF.FF F - Routing table D - Use OSPF

11 10 VRAAG 4 : antwoord ABE DC Internet Subnetmask: FF.FF.FF F DestinationMaskGatewayInterface FF.FF.FF FF.FF.FF FF.FF.FF FF Lo DestinationMaskGatewayInterface FF Lo FF.FF.FF FF.FF.FF FF.FF.FF

12 11 VRAAG 6 : ISP netwerk configuratie 10 netwerken Van PC’s 4 netwerken Van PC’s 2 netwerken Van PC’s … A Public Internet /14 Z

13 /14 VRAAG 6 : ISP netwerk configuratie /14 : 18 bits, 256 k adressen /15 : 17 bits, 128 k /16 : 16 bits, 64 k /17 : 15 bits, 36 k /18 : 14 bits, 16 k /19 : 13 bits, 8 k /20 : 12 bits, 4 k /21 : 11 bits, 2 k /22 : 10 bits, 1 k 10 netwerken Van PC’s 4 netwerken Van PC’s 2 netwerken Van PC’s … A /15 128k /15 128k /16 60k /16 60k /16 64k /16 64k /17 32k /17 32k /18 10k /18 10k /18 10k /18 10k /17 32k /17 32k /18 16k /18 16k /20 4k /21 2k /20 4k /22 1k /22 1k /22 1k /22 1k /22 1k /22 1k /22 1k /22 1k /21 2k /21 2k /21 2k /19 8k /19 8k /20 4k /20 4k /21 2k /21 2k /22 1k /22 1k /22 1k /22 1k / / / /24 256

14 13 … A Public Internet / /16 Z / / / / / / / / / / / / / / / / / / Adresbereik : – Aantal adressen : 4 x = VRAAG 6 : ISP netwerk configuratie

15 FREE : / / / /17

16 FREE : / / / / /25

17 16 FREE : / / / /17 Subnetsubnetmaskgatewayinterface / / / / / / / / / / Lo de 2 netwerken met PC’s de 4 netwerken met PC’s 8 netwerken met PC’s overige 2 netwerken met PC’s Router A subnetsubnetmaskgatewayinterface / Router Z FREE : / / / / /25 VRAAG 6 : ISP netwerk configuratie FREE : / /23


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